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Date: Sun, 13 May 2007 12:09:30 +0200
From: Sebastiaan van Erk <sebster@sebster.com>
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Subject: java 1.5 crashes
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Hi,

I'm having a lot of JVM crashes with java 1.5.

#  SIGSEGV (0xb) at pc=0x4851de79, pid=77384, tid=0x8421000
#
# Java VM: Java HotSpot(TM) Server VM (1.5.0-p4-root_28_apr_2007_09_58 
mixed mode)
# Problematic frame:
# V  [libjvm.so+0x38ee79]

They pretty much always seem to crash while doing the classloading:

Stack: [0xbe09f000,0xbe0df000),  sp=0xbe0dcdc4,  free space=247k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, 
C=native code)
V  [libjvm.so+0x38ee79]
V  [libjvm.so+0x4d02ce]
V  [libjvm.so+0x4d081a]
V  [libjvm.so+0x3900fe]
V  [libjvm.so+0x53ac8b]
V  [libjvm.so+0x2d592f]
V  [libjvm.so+0x5ba312]
V  [libjvm.so+0x3f0c81]
V  [libjvm.so+0x3f0ffb]
C  [libjava.so+0x1005e]  Java_java_lang_ClassLoader_defineClass1+0x19e
j  
java.lang.ClassLoader.defineClass1(Ljava/lang/String;[BIILjava/security/ProtectionDomain;Ljava/lang/String;)Ljava/lang/Class;+0

I've seen the problem on multiple FreeBSD machines, releases 5.5, 6.2, 
etc. The JVM is the most recent ports version:

java version "1.5.0-p4"
Java(TM) 2 Runtime Environment, Standard Edition (build 
1.5.0-p4-root_28_apr_2007_09_58)
Java HotSpot(TM) Server VM (build 1.5.0-p4-root_28_apr_2007_09_58, mixed 
mode)

I'm planning to recompile the port with debugging information so that 
there are line numbers in the trace.
I have both the log and the core saved, so if I can help in any way, 
don't hesitate to ask!

Regards,
Sebastiaan